Safety of tetanus toxoid in pregnant women: a hospital-based case-control study of congenital anomalies.
Reported are the results of the Latin American Collaborative Study of Congenital Malformations (ECLAMC), a hospital-based case-control study of 34,293 malformed and 34,477 matched nonmalformed newborn controls. No statistical differences were found between the malformed and control groups, exposed or not exposed to tetanus toxoid
Publisher: World Health Organization
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